deepsec
Open-source coding security harness
deepsec launched on May 10, 2026 with 256 votes, #89 of 20,538 launches that month and more than 99% of that year's launches.
In plain words
Deepsec is an open-source AI security harness that analyzes code for vulnerabilities. It runs on the user's own infrastructure using their own API keys, making it suitable for developers and development teams who want to perform security checks while maintaining control over their data and keys. The tool integrates with GitHub and other development workflows to catch security issues directly in the codebase.
written from the facts on this page · September 2026
From the sources
Vercel is open sourcing deepsec, an AI security harness that runs on your infrastructure, with your keys, against your code.
Today we're open sourcing deepsec, an AI security harness that runs on your infrastructure, with your keys, against your code.
Today we’re open sourcing deepsec : a security harness powered by coding agents. It runs on your own infrastructure and surfaces hard-to-find issues in large codebases. You can run deepsec on your laptop without setting up a cloud service for privileged source code access. For inference, you can use your existing Claude or Codex subscription without any additional setup. Scanning large repos can take multiple days on a single machine. To run research jobs in parallel, deepsec supports optional fanout to Vercel Sandboxes for remote execution. Scans on Vercel’s codebases routinely scale up to 1,000+ concurrent sandboxes. At its core, deepsec uses claude and codex to perform tailored…from vercel.com
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